baber/WOPTO huggingface dataset:
Patent GB-868671-A (GB)
Abstract: 868,671. Measuring electrically. GILBERT & BARKER MANUFACTURING CO. Feb. 23, 1959 [March 17, 1958], No. 6112/59. Class 40 (1). In a temperature indicating device the potential across a temperature-sensitive resistor is compared with the output of a potentiometer by means of an oscillating switch which connects a capacitor alternately across the resistor and across the potentiometer, any difference in potential between the two causing a pulsating charging current to be applied to the capacitor, said charging current serving to operate a servomotor which eliminates the charging current by bringing the output of the potentiometer into agreement with the potential across the resistor. As shown, Fig. 1, a temperature-sensitive resistor 10 responsive to the temperature to be measured is connected in a series circuit with a fixed resistor 38, a variable resistor 40, and a potentiometer 44, the latter being shunted by a fixed resistor 46 and a variable resistor 48, and the circuit being supplied with the rectified and smoothed output from a transformer T 1 . The potential drop across the resistor 10 is applied to terminals 66, 74 of a chopper switch 68 wherein it is compared with the potential drop across resistors 38, 40 and part of potentiometer 44, this potential being applied to terminals 78, 82 of the chopper switch. The chopper arm 84 of the chopper switch, which is connected alternately across terminals 66, 74 and terminals 78, 82, by the action of an A.C. operated solenoid 90, comprises a capacitor 102 which, when the potentials being compared become unequal consequent on a change in the temperature under test, charges and discharges as the alternate connection proceeds. Each time the chopper arm connects terminals 66, 74 this charge or discharge causes a pulse to be transmitted through a transformer T 2  having an oscillatory circuit comprising a capacitor 106 connected across its secondary windings. A phase-significant A.C. is thus generated which, having been amplified in a multi-stage variablegain amplifier 114 comprising transistors 144, 150, 156, 160 is applied to the control winding 198 of a two-phase motor M which operates to move the slider of potentiometer 44 to restore equality between the compared potentials and to actuate analogue or digital indicating apparatus (not shown).
Patent GB-2200083-A (GB)
Title: Steerable trolley
Inventor: PARSONS JONATHAN MARK
IPC: B62B3/14
Filed: 1987-01-20
Abstract: A steerable shopping trolley; has a load platform basket 1, four swivel castors the rear two being fitted with independent steering control brakes 2. To steer the trolley the left hand handle operates the left hand swivel castor brake to turn left while the right hand handle operates the right hand swivel castor brake to turn right. The castor brakes operates as follows:- The control handle 3 is pulled backwards rotating the handle driving a wedge on the underside of the handle against a ball bearing 5, causing a push rod 6 to move downwards. The brake push rod pushes a spring loaded brake activating pin 7 against a spring loaded brake finger 8. The brake finger rubs against the castor wheel. The clearance between the brake finger and the castor wheel can be adjusted by means of a screw and locknut 9 on the brake finger. <IMAGE>
Patent GB-2185882-A (GB)
Title: Apparatus stand
Inventor: MEIER WERNER
IPC: F16M11/00
Filed: 1987-01-27
Abstract: A stand, useful for infusions, is divided into an upper and a lower part. The lower part consists of a base part 1, a tube 3 fixed on the base part 1 and a support member 4 fixed on the tube 3. The upper part consists of at least one tube 5 with a rod 6 arranged movably within the tube 5. In order to provide the possibility for the mounting of several items of apparatus, a subcarrier is mounted on the support member. This tube with a rod and a further tube with a rod can then be mounted on the subcarrier. <IMAGE>
Patent GB-2209217-A (GB)
Title: An ultrasonic fluid flow meter
Inventor: LANGDON ROGER MARTIN
IPC: G01F1/66
Filed: 1987-08-28
Abstract: In order to make an ultrasonic flow meter more compact, reflecting surfaces 2b, 2c are provided so that ultrasonic signals from transducers 4, 5 travel along a region 2a of the flow path 2 substantially parallel to the axis of that region. A guide 10 may be provided to suppress off-axis modes along that region. Times of flight may be measured by varying the frequency to maintaining constant phase shift upstream and downstream. The timing circuit is also disclosed. <IMAGE>
Patent GB-880091-A (GB)
Abstract: 880,091. Converting. MOTOROLA Inc. July 25, 1960 [July 27, 1959 (2)], No. 25875/60. Class 38 (2). [Also in Groups XXXVI and XL (c)] In a two-way radio equipment for installation in vehicles (see Group XL (c)) potential is supplied to the centre tap of a transformer 141 in the transmitter power supply unit via a filter 140, switching transistors 142, 143 being connected in parallel in one side of the primary winding of the transformer, and switching transistors 144, 145 being connected in parallel in the other side. The switching of the transistors is controlled by a centre-tapped feedback winding 146 to which a bias potential is applied. The alternating voltage developed in winding 141 is applied via secondary windings 150, 155 and filters 152, 157 to the respective output terminals 153, 158.
Patent GB-2204047-A (GB)
Title: Drag reducing coating compositions
Inventor: LEIDNER JACOB
IPC: B63B1/34
Filed: 1988-04-25
Abstract: A drag reduction liquid composition, suitable for application to solid surfaces to provide for drag reduction of liquids flowing over such surfaces, comprises a finely divided drag reducing polymeric material which is hydrophilic, a binder for the drag reducing material and a setting agent for the binder. The setting agent solidifies the binder when the liquid composition is applied to a solid surface. The drag reducing material is dispersed throughout the binder and diffuses into liquids flowing over a solid surface having the liquid composition applied thereto to reduce turbulence at the interface for liquids flowing over such solid surfaces.
Patent GB-2316822-A (GB)
Title: Improved jamming method
Inventor: MORAND JEAN-FRANCOIS
IPC: G01S7/38
Filed: 1988-07-22
Abstract: A jamming source (SBR), is coupled to two channels supplying respectively transmission amplifiers (AE1 and AE2) followed by antennas (AP1 and AP2)operating in different polarizations. The former of the two channels is subject to fast time variations with respect to the latter, using a line of programmable length (LLP), or a programmable phase shift (DPV Fig 2). A switching arrangement and 3dB coupler may be used (Fig 3). For jamming of pulse Doppler radar, switching arrangements working with a switching time shorter than the Doppler filter integration time, may be used (Figs 4,5). The resultant changes in jammer polarization are intended to defeat the countermeasures response capability of the jammed radar.
Patent GB-2223402-A (GB)
Title: Hair paraphernalia
Inventor: CHENG HAN TENG
IPC: A45D4/16
Filed: 1988-10-05
Abstract: A handbag for arrangement of one set of hair paraphernalia comprises hot plates 3 curling rods 4, heater, PC board including thermo control and protective circuit, and frame body 2, having automatic thermo control and self-protection properties, a belt being attached to the body of the handbag for easy carriage and suspension of the bag and two pockets being provided on the handbag for collection of electric wire or comb. <IMAGE>
Patent GB-2228610-A (GB)
Title: Measuring radioactivity: radon detector
Inventor: HENSHAW R DENIS LEE
IPC: G01T5/02
Filed: 1988-12-15
Abstract: A method of measuring alpha activity uses a plastic track detector, and a 1cm square box is scribed on the plastic track detector (1) so that the user may count the number of recorded alpha-particle tracks in a fixed area without need to measure that area. Tracks of alpha-particles recorded on the plastic detector are etched in such a way as to be uniquely identifiable (2) when projected on a screen by placing the plastic in a slide projector. A particular configuration of a radon detector houses the plastic track detector in a pot 70 mm high by 50 mm in diameter, such as that commonly used as a yogurt pot, which is exposed for six days either in or around the home. In this configuration the number of recorded tracks falling within the 1cm square is equal to the radon activity in Becquerels per cubic metre of radon in air. The plastic track detector with these features may be used separately for measuring total alpha-radioactivity in the ground. <IMAGE>
Patent GB-2229351-A (GB)
Title: Insulating jacket
Inventor: HUTCHINSON PETER
IPC: A47G9/02
Filed: 1989-03-23
Abstract: A thermally insulating jacket such as a sleeping bag is provided with an inner layer (1) and an outer layer (2) to which are attached a plurality of internal walls (3) so as to define a plurality of boxes. The boxes are filled with insulating material such as down or synthetic material. The inner layer is elasticated by, for example, the provision of elasticated thread (7) which causes the inner layer to pull inwards away from the outer layer. This reduces the space between the inner layer and the person or article being covered by the jacket, so as to reduce heat transfer by convection and also increases the thickness of the jacket, thereby improving its thermal insulation. In addition to sleeping bags, the invention can be applied to articles of high insulation clothing and also jackets for insulating hot or cold water tanks.
Patent GB-2229909-A (GB)
Title: End fittings for tubular members
Inventor: JAMES MICHAEL JOSEPH
IPC: A47C5/04
Filed: 1989-04-04
Abstract: An end fitting 1 for a tubular member has a split end portion 4 adapted to be inserted in the member, and a wedge member 2 adapted to be inserted transversely through an aperture in the wall of the tubular member. Insertion of the wedge member 2 is operative to widen the split in the end portion 4 and thus firmly wedges the latter against the wall of the tubular member. <IMAGE>
Patent GB-2221462-A (GB)
Title: Chlorination of sugars
Inventor: HOMER NIGEL JOHN
IPC: C07H11/00
Filed: 1989-07-31
Abstract: Sugars and partly protected sugar derivatives are chlorinated by reaction of unprotected hydroxyl groups with thionyl chloride to form a persulphite followed by decomposition of the sulphite groups to form chlorosulphites, displacement of the chlorosulphite groups and insertion of chlorine atoms at one or more positions, characterised in that formation and displacement of the chlorosulphite groups and insertion of chlorine atoms is effected by reaction with thionyl chloride in an inert solvent in the presence of a quaternary salt of the general formula:  N<+>R<1>R<2>R<3>R<4> Cl<->      (I) wherein R<1>, R<2> and R<3>, which may be the same or different, each represent a lower alkyl group, and R<4> represents a hydrocarbon group with at least seven carbon atoms; and, when the sugar or partly protected sugar derivative has more than three unprotected hydroxyl groups, the process comprises the following stages:   (a) reaction of the sugar or partly protected sugar derivative with thionyl chloride in the presence of pyridine to form a persulphite;   (b) isolation of the polysulphite to remove free pyridine; and (c) reaction of the isolated polysulphite with thionyl chloride in an inert solvent or suspension medium in the presence of a quaternary salt of the general formula (I). o
Patent GB-2226230-A (GB)
Title: Storage container
Inventor: PHILLIPS JOHN CHARLES
IPC: E05G1/06
Filed: 1989-12-27
Abstract: A cylindrical hole in a floor receives a cylindrical container 1 with a central shaft 29 carrying storage racks 17 (e.g. carousels with compartments for bottles). Means are provided for raising racks successively, so that each upper rack (which overlies the lower rack) is movable upwardly out of the container independently of each respective lower rack. <IMAGE>
Patent GB-2243125-A (GB)
Title: A vehicle suspension in which a lever-arm shock-absorber is replaced by a telescopic shock absorber
Inventor: NELMS CHARAN
IPC: B60G3/20
Filed: 1990-04-12
Abstract: A method of modifying a double wishbone suspension having a lever arm shock absorber comprises removing the lever arm shock absorber and replacing it by an upper lever arm 51 so that its inner end is pivotably mounted on blocks 54 secured in place of the shock absorber on a cross member and that its outer end is pivotably mounted on the wheel carrier 25. A hole 58 is made in the cross member and a telescopic shock absorber 66 is located within the existing coil spring 39 so that the one end of the shock absorber is pivoted on a trunnion 68 on the lower arm 64 or an extension thereof and the other end of the shock absorber 66 is pivotable about the inner pivot axis of the upper arm 51, extending through hole 58. <IMAGE>
Patent GB-2233760-A (GB)
Title: Microbiological testing.
Inventor: QUENSEL LOUIS BERTRAND
IPC: C12M1/32
Filed: 1990-07-11
Abstract: Apparatus for performing a plurality of microbiological tests comprising a layer of agar or other nutrient gel filling a plurality of channels which communicate with a common region from which the apparatus may be charged with liquid agar prior to use; characterised in that indicia are provided adjacent said channels to permit a direct visual measurement of the effect of the test substance on the growth of a microorganism on said agar, when said test substance has been allowed to diffuse along said channel from a determined point of application to form a concentration gradient of said substance along said channel.
Patent GB-2235591-A (GB)
Title: Antenna device
Inventor: OHTSUKA SOHZO
IPC: H01Q1/08
Filed: 1990-08-22
Abstract: An antenna device includes a base (12), a metal band (13) having two opposite ends, a reel (18-1) disposed within the base and having one end of the band connected thereto for winding the band thereon, the opposite end of the band being received in the base, and a guide (14) which receives the band (13) outside the base for forming the band into substantially horizontal and vertical components, and for adjusting the length of the horizontal and vertical components of the band. <IMAGE>
Patent GB-2236193-A (GB)
Title: Voltage indication apparatus
Inventor: WOODCRAFT RICHARD
IPC: G01R19/14
Filed: 1990-09-03
Abstract: Voltage indication apparatus (10) is disclosed including a first Light-Emitting Diodes (16) and a second Light-Emitting Diode (17) attached in parallel opposed relationship between a test probe (18) and a centre tap (13) on a voltage divider formed from a pair of resistors (11 and 12), the latter being terminated by alligator clips (14 and 15) which may be connected to the power rails of a circuit to be tested. During testing, current passes through and illuminates the first Light-Emitting Diode (16) if the test probe (18) is connected to a voltage between the voltage at the centre tap (13), which is typically half of the voltage between the power rails, and the voltage of the negative power rail. If the test probe (18) is connected to a voltage between the voltage at the centre tap (13) and the positive power rail, the second Light-Emitting Diode (17) will be illuminated. The apparatus is not polarised, and the alligator clips (14 and 15) may be connected to either power rail.
Patent GB-2248353-A (GB)
Title: Frequency reference circuit
Inventor: WILLIAMSON ROGER JAMES
IPC: H03L7/07
Filed: 1990-09-29
Abstract: A quartz crystal controlled frequency reference circuit has phase lock loop means for comparison of a pair of harmonic frequencies whereby to provide a temperature characteristic signal. Each harmonic is abstracted via a respective phase locked loop. This overcomes the stability problems associated with conventional circuits requiring filters. <IMAGE>
Patent GB-2237066-A (GB)
Title: I.c. engine mixture intake manifold
Inventor: TAYAMA RYUJI
IPC: F02M35/104
Filed: 1990-10-17
Abstract: A series of grooves and recesses 12, 13a, 13b and 11-1 to 11-4 in the bottom of the common and branch intake passages 5 and 6-1 to 6-4 collect fuel from the mixture which is distributed evenly to the manifold branches. A baffle 8 evens the mixture flow to the branches. Coolant passages (14, Figs. 1,3 and 4) pass through the manifold beneath the collection grooves and recesses. <IMAGE>
Patent GB-2238337-A (GB)
Title: Mineral cutting drum
Inventor: PARROTT GEORGE ALBERT
IPC: E21C35/22
Filed: 1990-11-23
Abstract: In a mineral cutter drum (4) incorporating a plurality of extraction tubes (10), a water spray nozzle (11) associated with each extraction tube (10), a water supply path (14, 13) extending radially outwardly to each nozzle (11) from a central zone at an inner end of the drum (4), and a water conduit (23) extending generally axially of the drum (4) and adapted, in use, to convey water from an outside source into the drum (4), an attachment comprises a monitoring probe (15) adapted to be permanently associated with each extraction tube (10), an air supply path (17, 16) extending radially outwardly to each probe from the central zone at the inner end of the drum, and a air supply conduit (20, 22) also extending generally axially of the drum and adapted, in use, firstly to convey air into the drum for discharge at a discharge aperture of each probe under the suction effect generated by operation of the water spray nozzles, and secondly to provide for measurement, outside the drum of the vacuum levels within the extraction tubes. <IMAGE>
Patent GB-2239264-A (GB)
Title: Method for depositing wear-resistant dispersion coatings
Inventor: PLATZ ALBIN
IPC: C23C4/134
Filed: 1990-12-19
Abstract: In a method for depositing wear-resistant dispersion coatings consisting of matrix metal and hard-material particles on metallic components by means of plasma spraying as illustrated in Fig 1, the hard-material particles (11) are sprayed separately from the plasma stream of matrix metal (10) into the plastically still deformable matrix metal (6). The matrix metal and the hard-material particles may be deposited synchronously or step by step in succession. Coatings (1) of this description are deposited in evacuated chambers or under inert gas on the blade tips of gas turbine engines. on the sealing fins of labyrinth seals or as rub coatings (1) on circumferential surfaces (4) of, e.g. rotors (2). <IMAGE>
Patent GB-2239851-A (GB)
Title: Conveyor belt construction
Inventor: VANCE DOUGLAS JOHN BRUCE
IPC: B65G15/34
Filed: 1991-01-14
Abstract: A conveyor belt construction comprises a body (13) of elastomeric material and reinforcing means (15) disposed within the body (13) to provide the belt with suitable transverse stiffness and longitudinal flexibility. The body (13) comprises a core (17) and top and bottom cover layers (19, 21) on opposed sides of the core (17). The reinforcement means (15) comprises a plurality of stiff elongated reinforcing elements (23) which extend transversely across the belt and terminate inwardly of the longitudinal edges thereof. The elements are in spaced apart relation along the belt. Means for resisting transverse shrinkage of the elastomeric body are also included, said means preferably being in the form of an open mesh between the core (17) and the bottom cover layer (21). The mesh includes warps of nylon cord and wefts (31) of high tensile steel cords or high tensile aramid fibre cord. <IMAGE>
Patent GB-2242021-A (GB)
Title: Particle sizing
Inventor: WALLACE-SIMS GRAHAM ROBIN
IPC: G01N15/02
Filed: 1991-01-29
Abstract: A method of, and apparatus for, measuring the size of particles in which a real image of a series of transparent and opaque regions of a transparency 5 is produced in a probe volume 6 through which particles the size of which is to be measured are caused to pass, the light scattered by the particles as they pass through the probe volume is detected by detector 2 and signals related thereto are generated. Of these signals only those which have the same number of modulations as there are transparent and opaque regions of the transparency and a depth of modulation greater than a minimum value are used to derive an estimate of the size of the particles. If desired, the velocity of the particles also can be derived from a measurement of the modulation frequency of the scattered light. <IMAGE>
Patent GB-2244356-A (GB)
Title: Inter-processor communication
Inventor: SIMPSON HUGO R
IPC: G06F15/173
Filed: 1991-04-12
Abstract: A multiple processor computer system in which a group of computing units, each with a processor linked to a private memory via a private data bus, are linked each one to every other via a respective separate independent shared memory area controlled by a communications controller which can make available a full asynchronous two way communication route through the memory area. Multi-tasking capability of the computer units is controlled by a further set of unit controllers in combination with respective software task schedulers.
Patent GB-2243148-A (GB)
Title: Lid for sheet feed tractor
Inventor: UNUMA SADAO
IPC: B41J15/00
Filed: 1991-04-17
Abstract: In a sheet feed tractor, a lid (9) confines a paper sheet on a frame surface when the paper sheet is conveyed by a pin belt. The lid (9) has a stop (15) which abuts a stop (13) on a hinge (7) on the frame to define a normal open position, but which can overrun stop (13) if excessive force is applied. Other stops on the lid and frame hinge define a normal closed position. <IMAGE>
Patent GB-2245811-A (GB)
Title: Verge trimming machines
Inventor: COOPER WILLIAM HAROLD
IPC: A01D34/84
Filed: 1991-06-25
Abstract: A verge trimming machine comprises a container for spoil, a frame 15 secured to the container, a cutter 16 carried by the frame for cutting an edge of a verge as the machine is advanced, a lifting device 22 for lifting the spoil adjacent to the cut edge and a power driven spinner 25, 26 for conveying the spoil from the lifting device into the container. <IMAGE>
Patent GB-2257444-A (GB)
Title: Anchor grip for tendon
Inventor: DEAN GEOFFREY
IPC: E04C5/12
Filed: 1991-06-28
Abstract: The surface of an anchor grip 2, 3 is provided with a friction layer the better to grip an elongate rope K received therein. The friction layer may be a sprayed on metal, alloy, cermet or ceramic. <IMAGE>
Patent GB-2250308-A (GB)
Title: Tide screen
Inventor: BROOKS JOE
IPC: E02D29/09
Filed: 1991-11-25
Abstract: A screen comprises a plurality of sections 1. Each has a framework 2, an outer shield 9 on one side and means 3 for connection to an adjacent section. The screen is provided with buoyancy 5. <IMAGE>
Patent GB-913685-A (GB)
IPC: B29C44/32
Abstract: 913,685. Coating surfaces. SUNDES FABRIKKER A. S. Feb. 6, 1959, No. 4269/59. Class 95 [Also in Groups VIII and XXVIII] Rods and tubes are made by forcing a foamforming polyurethane mixture from a head or nozzle A on to a former B which is moved in relation to the head or nozzle, so as to form an even deposit thereon, the mixture after being deposited attaining a foamed structure with a smooth and compact surface layer. The former may be a rod, which may be rotated and moved longitudinally, or a strip of material, e.g. textile fabric.
Patent GB-2264725-A (GB)
Title: Toilet cistern incorporating hand-washing facilities
Inventor: BELL ROBERT HORNE
IPC: A47K4/00
Filed: 1992-02-28
Abstract: A removable toilet cistern lid (A) is shaped to form a bowl with an exit (3) to the cistern below, its water supply provided when the user flushes the toilet pan. When the pan is flushed water enters the ball-valve (1) and is directed upwards through a swan-neck pipe (2) into the bowl and from there downwards through the plug hole to fill the cistern for the primary purpose of flushing or siphoning away the contents of the pan. The stream of water from the swan-neck facilitates hand rinsing as it passes into the lid/bowl. The arrangement saves the cost of separate provision for hand rinsing, saves space, saves water, encourages good practise, and provides a warning of ball-valve malfunction currently frequently missed. <IMAGE>